Install durable threaded inserts into 3D-printed and plastic parts with this 311-piece heat-set threaded insert kit . The set includes a digital soldering iron, six insert tips, 300 brass threaded inserts, connecting rods, a holder, and tweezers. Key Features Complete 311-Piece Set Includes: 1 × Digital soldering iron 6 × Heat-set insert tips: M2, M3, M4, M5, M6, M8 2 × Soldering-tip connecting rods 300 × Threaded inserts 1 × Soldering iron holder 1 × Tweezers Easy Heat-Set Insert Installation The specialized tips help embed threaded inserts cleanly into plastic, creating strong, reusable threads. Adjustable Digital Soldering Iron The soldering iron has an adjustable temperature range of: 200–500°C 392–932°F It is rated at 20W with a maximum power of 100W . Simple Controls Press and hold the temperature increase and decrease buttons together for approximately two seconds to power on. Press and hold the decrease button to switch between Celsius and Fahrenheit. High-Quality Brass Inserts The threaded inserts are made from brass for good corrosion resistance and thermal conductivity. Compatible Materials Suitable for use with common 3D-printing materials, including: PLA ABS Nylon Quick-Change Tip Design The split design allows tips to be changed without removing the soldering iron sleeve. Simply unscrew the installed tip and attach the required size. Designed to Protect Printed Parts The tip geometry helps reduce the risk of damaging the surface around the insert during installation. Specifications Total Pieces: 311 Threaded Inserts: 300 Insert Tip Sizes: M2, M3, M4, M5, M6, M8 Temperature Range: 200–500°C / 392–932°F Rated Power: 20W Maximum Power: 100W Insert Material: Brass Compatible Materials: PLA, ABS, nylon